电影从未真正完成，它只是被放弃了。

"Innocence always calls mutely for protection when we would be so much wiser to guard ourselves against it: innocence is like a dumb leper who has lost his bell, wandering the world, meaning no harm."

The greatest single achievement of computer science is the development of the concept of the algorithm.

无径之林，常有情趣

理论物理学之于数学，犹如雕塑之于几何学。